这种方法提高了编码增益。
首先提出编码增益准则下sBC优化的统一形式化描述。
First, we develop an integrated formulation for SBC optimization with respect to coding gain criterion.
最后从编码增益和频带有效性角度对该方案的性能作了评价。
Lastly, the performance of the scheme is given in terms of the asymptotic coding gain as well as bandwidth efficiency.
因此，在保持相当的编码增益的同时，计算复杂度得到了极大的降低。
Therefore, computational complexity is greatly reduced while keeping the same coding gain.
得出分集增益不受信道相关性的影响，但是编码增益则有一定的损耗的结论。
Furthermore, we conclude that the channel fading correlation has nothing to do with diversity advantage, but the code advantage will be affected.
这种编码在相同的码速率下，实现了比stbc更大的分集度和更高的编码增益。
Using this new scheme, higher diversity order and coding gain can be achieved than STBC at the same coding rate.
但是，空时分组编码只具有分集增益而缺乏编码增益，这使其在纠错能力上大为逊色。
However, STBC only shows diversity gain but free of coding gain. Consequently, the error capacity of an STBC design is limited.
进行EFEC(增强型FEC)的研制，主要应用于时延要求不严编码增益特别高的光通信系统。
Study on EFEC is mainly applied to the optical communication which time delay is not requested strictly and the coding plus should be very high.
通过在OFDM通信系统中应用新型差分空时分组码（DSTBC），获得编码增益，无需信道估计。
By using new DSTBC in OFDM communications system channel estimation is nto necessary and coding gain is gotten.
信道编码技术能够带来编码增益，节省宝贵的功率资源，已经成为现代通信系统必不可少的关键技术。
Channel coding technology which can bring coding gain and save valuable power resource becomes a key technology in modern communication system.
由于中继节点的参与，该协议可充分利用多用户协作的空间分集和出错重传所带来的时间分集和编码增益。
As the relay node's involvement, the agreement can take full advantage of multi-user cooperative spatial diversity and the time diversity and coding gain from retransmission mechanism.
该方案能够克服LDPC码的误码平层，并且比BCH码级联方法有更高的灵活性以及更大的编码增益。
The scheme can solve the flat bed of error codes of the LDPC code and has higher flexibility and greater encoding gain than the cascaded methods of BCH code.
针对分层空时编码技术缺少编码增益的问题，提出了将复数旋转码与分层空时编码技术相结合来提高系统的性能。
It presents a new scheme of combining complex-rotary codes and layered space-time code to improve the performance of systems based on the lack of encoding plus of layered space-time code.
级联码是将两个或多个单码级联，在不增加译码复杂度的情况下，可以得到高的编码增益，达到与长码相同的纠错能力。
Concatenation of an inner code and an outer code may provide a high coding gain and the capacity of a long code to correct errors.
在本文中，本文对这两种编码方式在设计准则、传输速率、分集增益、编码增益和算法复杂性等方面进行了较为详尽的比较研究。
In this paper, we mainly compare the performance of the two space-time codes in many aspects, such as design criterion, transmission rate, diversity gain, code gain and arithmetic complexity etc.
针对MB - OFDMUWB系统的性能特征，基于理论分析系统的成对错误概率，获知编码增益和分集增益的计算公式，从而得到空时频编码方案的设计准则。
Aiming at the performance characteristics of MB-OFDM UWB, the formula for coding gain and diversity gain is worked out based on pairwise error probability of theoretical analyzing system.
介绍TD -SCDMA处理增益的计算方法，并通过举例对各种业务的编码、交织及物理信道映射过程进行说明。
It presents the calculation method on TD-SCDMA process gain, and gives an illustration on coding, interleaving of diversified services and physical channel mapping.
结果证明，该文级联系统取得高出一般位交织编码调制系统2—6分贝的性能增益。
The results show that the proposed cascade system improves the performance gain by 2 to 6 dB compared to traditional BICM system.
在频率选择性信道中，新编码策略可以获得空时频全分集增益。
The new coded strategy can achieve full space-time-frequency diversity over frequency selective fading channel.
本文分析了G . 728语音编码算法增益固定量化的缺陷，设计了精确表示增益的自适应量化方案。
This paper analyzes the limitation of fixed gain quantization in G. 728 speech coding algorithm and proposes an adaptive quantization scheme with exact gain.
在遗传操作过程中，改进了编码方法，构造的适应度函数不但以一定的零陷深度为目标，还考虑副瓣的增益维持在一定的水平。
In the process of genetic manipulation, encoding method is improved, fitness function is constructed not only considering nulling depth, but also the side lobe gain to maintain a certain level.
在无线衰落信道环境中，协作中继是一种增加额外分集增益的有效方法，而网络编码可以用来提高网络吞吐量。
In the wireless fading channel environment, cooperative relaying is an effective way to increase additional diversity gain, and network coding can be used to increase network throughput.
在无线中继网络中采用网络编码技术，可在不损失分集增益的前提下有效提高中继节点的转发效率。
In the wireless relay network, the transmission efficiency of the relay node can be improved effectively without loss of diversity gain via the network coding technique.
对OFDM系统提出将空时编码与自适应功率控制技术相结合，给出了仿真结果，提高了分集增益和自适应增益。
For the OFDM system, a scheme of combining space-time code with the adaptive power control technology is proposed with simulation results, which increases the diversity gain and the adaptive gain.
为了解决这一问题就引出了BICM，它是将比特交织与编码调制技术相结合，结果表明可以得到在瑞利信道下更好的增益。
To solve this problem, BICM, which combines the bit interleaver and the coded modulation technology, is proposed. The results show that BICM can obtain more gain in Rayleigh channel.
由于深空信道的极低的信噪比，具有高增益的信道编码技术是深空遥测系统必不可少的环节。
The signal to noise ratio in the deep space communication channel is so low that high quality channel coding scheme is essential for deep space comnunication systems.
通过比较可以看出，网络编码的方法可以带来更多能量效率的增益，即更少的平均广播次数。
Trough comparison between two solutions, we can see that network coding can bring higher energy efficiency and have the less average broadcasting Numbers.
本发明在利用MBAFF编码实现高增益的同时可有效地降低MBAFF编码的复杂度。
The invention can make use of MBAFF coding to realize high-gain, and at the same time can also effectively reduce the complexity of the MBAFF coding.
本文从软件方面来对高增益编码与调制技术进行研究，其中以后者作为重点研究。
This article studies the high gain code and the modulation technology from the software aspect, and take the key research on the latter.
该方法在时域进行差分编码，而在频域进行空频编码以获得分集增益。
The differential coding is performed in the time domain, while the space-frequency coding is processed in the frequency domain to achieve the diversity ga.
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